Installation guide

BB005x Installation and Configuration Guide

Security Level = Low

External/Internal External/DMZ DMZ/Internal

Protocol Port In Out In Out In Out

http 80 X Yes Yes Yes Yes Yes

dns 53 Yes Yes Yes Yes Yes Yes

ftp 21 X Yes Yes Yes Yes Yes

telnet 23 X Yes Yes Yes Yes Yes

smtp 25 X Yes Yes Yes Yes Yes

pop3 110 X Yes Yes Yes Yes Yes

nntp 119 X Yes Yes Yes Yes Yes

Real aud./vid. 7070 Yes X Yes Yes Yes Yes

Icmp N/A Yes Yes Yes Yes Yes Yes

H.323 1720 Yes Yes Yes Yes Yes Yes

T.120 1503 Yes Yes Yes Yes Yes Yes

SSH 22 Yes Yes Yes Yes Yes Yes

►

Configuring Firewall Policy

When none of the preset levels of security fit a particular network, the BB005x

allows setting customized security policies where users can add and configure

their own packet filters.

To configure a specific security policy:

1. Click on Advanced Configuration and then click on Security.

2. Make sure that the Firewall option is enabled and click on Change State

3. Click on Firewall Policy Configuration under the Policies, Triggers and

Intrusion Detection section at the bottom of the screen.

4. Click on New Policy. The Firewall Add Policy Screen will appear

5. Select interfaces of type internal or external

6. Decide whether validators will block or allow traffic

Selecting “allow” will allow traffic from all hosts that have validators and block

traffic from all other hosts

Selecting “block” will block traffic from all hosts that have validators and allow

traffic from all other hosts.

7. Click on Apply and the new policy will then be added to the Firewall

configuration.

All that is needed now is to configure the port filters and the validators

associated with the new security policy. Port filters are specific rules that

determine what kind of traffic can pass between the two interfaces. Validators

allow/block traffic based on the source/destination IP address and netmask.